D13133313221323331323331313113313233313231322331323123231323211   >>    D1313331322132333132333131311331323331323132233132312323132321   <<    D13133313221323331323331313113313233313231322331323123231323213   >>      D13133313221323331323331313113313233313231322331323123231323212   >>